9.
Operating Instructions
As a general rule, only add substances which have the same characteristics of domestic waste water.
Biocides, toxic or non-biocompatible substances or non-biodegradable substances must not be allowed to
get into the plant as they may lead to problems with the biological processes. In particular, the following
must not be added:
Precipitation from roof and yard surfaces,
•
External water (e.g. Drain water),
•
Residues from animal husbandry in solid and liquid form,
•
Commercial or agricultural waste water if it is not comparable to domestic waste water.
•
Chemicals, pharmaceuticals, mineral oils, solvents,
•
Coolant water,
•
Coarse materials in the form of food rests, plastics and sanitary articles, café filters, bottle stop-
•
pers and other household articles,
Milk and milk products,
•
Water drained from swimming pools,
•
Large amounts of blood.
•
If larger amounts of grease or plant oils are present, we recommend you preclean the fatty waste water in
a grease trap placed upstream of the sewage treatment plant (caution: Do not feed faeces into the grease
trap!)
9. Operating Instructions
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